Apparatus for driving a touch pad and a portable terminal having the same

ABSTRACT

An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.

PRIORITY

This application is a continuation application of prior application Ser.No. 16/132,034, filed on Sep. 14, 2018; which is a continuationapplication of prior application Ser. No. 11/764,963, filed on Jun. 19,2007, which has issued as U.S. Pat. No. 10,133,339 on Nov. 20, 2018; andwhich claimed priority under 35 U.S.C. 119(a) of a Korean patentapplication 10-2006-064420, filed on Jul. 10, 2016, and of a Koreanpatent application 10-2007-050330, filed on May 23, 2007, the entiredisclosures of each of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to an apparatus for driving a touchpad ofa portable terminal. More particularly, the present invention relates toan apparatus for driving a touchpad of a portable terminal, whichincludes the touchpad and a multimedia processor controlling thetouchpad.

2. Description of the Related Art

Portable communication terminals have been widely used for some time.Most recently, portable terminals have tended to be multimedia deviceswhich have the ability to perform various advanced functions.Specifically, portable terminals combined with a Portable MultimediaPlayer (PMP) and portable terminals which can provide a multimediafunction, have been rapidly developed. These portable terminals have amultimedia processor embedded therein, which can perform a multimediafunction.

Portable terminals providing a multimedia function may have a touchpadthat can sense input signals exerted thereon by the user's fingers,pens, and the like. The touchpad provides an efficient user interfaceand a more convenient method of using the multimedia functions.

However, in these portable terminals having a touchpad, the embeddedmultimedia processor controls the touchpad with a polling method.Accordingly, battery power is unnecessarily consumed in order to keepthe user interface with the touchpad active.

Furthermore, when the multimedia processor enters or is converted to asleep mode, it cannot recognize input signals from the touchpad eventhough the user presses the touchpad. Hence, there is a problem in thatthe user interface cannot be maintained with the touchpad.

SUMMARY OF THE INVENTION

An aspect of the present invention is to address at least theabove-mentioned problems and/or disadvantages occurring in the prior artand to provide at least the advantages described below. Accordingly, itis an object of the present invention to provide an apparatus fordriving a touchpad of a portable terminal, which can maintain a userinterface efficiently.

It is another object of the present invention to provide an apparatusfor driving a touchpad of a portable terminal, which can reduceconsumption of electric power required to maintain a user interface.

In accordance with an aspect of the present invention, an apparatus fordriving a touchpad of a portable terminal is provided. The apparatusincludes a sensor unit for generating interrupt signals when pressure onthe touchpad is sensed, a second control unit for controlling thetouchpad in an active mode, a first control unit for outputtingactivating signals to activate the second control unit when theinterrupt signals are input and a switching unit for transmitting theinterrupt signals generated from the sensor unit to the first controlunit when the second control unit is in an inactive mode.

In accordance with another aspect of the present invention, an apparatusfor driving a touchpad of a portable terminal is provided The apparatusincludes a sensor unit for generating interrupt signals when pressure onthe touchpad is sensed a second control unit for controlling thetouchpad in an active mode, and a first control unit for outputtingactivating signals to activate the second control unit when theinterrupt signals are input.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features and advantages of certainexemplary embodiments of the present invention will be more apparentfrom the following detailed description taken in conjunction with theaccompanying drawings, in which:

FIG. 1 is a block diagram illustrating a portable terminal according toan exemplary embodiment of the present invention;

FIG. 2 is a block diagram illustrating a detailed structure of theexemplary portable terminal shown in FIG. 1;

FIG. 3 is a perspective view illustrating a structure of a touchpad of aportable terminal according to an exemplary embodiment of the presentinvention;

FIG. 4 is a block diagram illustrating a portable terminal according toan exemplary embodiment of the present invention;

FIG. 5 is a block diagram illustrating a detailed structure of theexemplary portable terminal shown in FIG. 4;

FIG. 6 is a block diagram illustrating a portable terminal according toanother exemplary embodiment of the present invention; and

FIG. 7 is a block diagram illustrating a detailed structure of theexemplary portable terminal shown in FIG. 6.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features andstructures.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of exemplaryembodiments of the invention as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the embodiments described hereincan be made without departing from the scope and spirit of theinvention. Also, descriptions of well-known functions and constructionsare omitted for clarity and conciseness.

FIG. 1 is a block diagram illustrating a portable terminal according toan exemplary embodiment of the present invention, and FIG. 2 is a blockdiagram illustrating a detailed structure of the exemplary portableterminal shown in FIG. 1.

The portable terminal shown in FIG. 1 includes a touchpad 110, a sensorunit 115, a switching unit 120, a second control unit 130, a key inputunit 140, a first control unit 150, a display unit 160, and a memoryunit 170.

Referring to FIGS. 1 and 2, the touchpad 110 includes a small flat panelto which a pressure sensor is attached. In operation of the touchpad110, signals are input to the second control unit 130 when a usertouches the touchpad 110 with a finger, a pen and the like.

The sensor unit 115 generates interrupt signals and outputs them to theswitching unit 120 upon sensing pressure on the touchpad 110. The sensorunit may be included in the touchpad 110.

In an exemplary embodiment of the present invention, the sensor unit 115includes a dome sheet 112 having a dome switch. The dome switch sensespressure on a window of the touchpad 110 so as to output interruptsignals to the switching unit 120.

With reference to FIG. 3, an exemplary structure, having the dome sheetincluded in the touchpad 110, will be described hereinafter.

FIG. 3 is a perspective view illustrating a structure of a touchpad of aportable terminal according to an exemplary embodiment of the presentinvention.

Referring to FIG. 3, the touchpad 110 is connected to a circuit board(not shown) of the portable terminal through a ribbon cable 117.

The touchpad 110 has an opening 111 formed in a part thereof, and a domesheet 112 including a dome switch is disposed in the opening 111.

The dome sheet 112 is connected to the touchpad 110 through a flexibleprinted circuit 113, and the opening 111 is formed in the touchpad 110.In an exemplary embodiment, the opening 111 is formed at the center ofthe touchpad 110. Therefore, the dome switch outputs interrupt signalswhen a window, which is positioned in the touchpad 110, is pressured soas to close a switch.

Referring to FIGS. 1 and 2, the second control unit 130 controls thetouchpad 110 in the active state, and maintains an interface between auser and the portable terminal through the touchpad 110.

When the second control unit 130 enters an inactive mode, the switchingunit 120, under the control of the first control unit 150, connects aninterrupt signal line output from the sensor unit 115 to the firstcontrol unit 150. Therefore, the switching unit 120 can transmit aninterrupt signal generated in the sensor unit 115 to the first controlunit 150 through the interrupt signal line.

On the other hand, when the second control unit 130 is in an activemode, the switching unit 120, under the control of the first controlunit 150, disconnects the interrupt signal line so that the interruptsignals are not transmitted to the first control unit 150.

More specifically, if the second control unit 130 enters an inactivemode, for example a sleep mode, the second control unit 130 may notifythe first control unit. The first control unit 150 then generates acontrol signal and enables the switching unit 120 to transmit interruptsignals output from the sensor unit 115 to the first control unit 150.At this time, the first control unit 150 can be converted to the sleepmode after controlling the switching unit 120.

When the second control unit 130 is in an inactive mode, if an interruptsignal is generated from the sensor unit 115 and input to the firstcontrol unit 150, the first control unit 150 outputs an activatingsignal to the second control unit 130 so as to activate the secondcontrol unit 130. Then, the second control unit 130 is converted fromthe inactive mode to the active mode to process signals input throughthe touchpad 110.

On the other hand, if an interrupt signal is input into the firstcontrol unit 150 while it is in the sleep mode, the first control unit150 is converted to the active mode. Then, the first control unit 150outputs an activating signal to the second control unit 130 to activatethe second control unit 130, and in turn is converted to the sleep modeagain.

The switching unit 120 may be implemented as an analog switch in anexemplary embodiment of the present invention.

In an exemplary embodiment of the present invention, the second controlunit 130 includes a multimedia processor for performing a multimediafunction of the portable terminal. The multimedia function refers to afunction of processing various media including voices, figures,pictures, etc.

The key input unit 140 includes character keys, numeric keys, variousfunction keys, and external volume control buttons, and outputs keyinput signals corresponding to the user's key input to the control unit150.

The first control unit 150 (e.g. a Mobile Station Modem (MSM) chip)controls overall operations of the portable terminal according to anexemplary embodiment of the present invention.

The display unit 160 may include a Liquid Crystal Display (LCD), etc.,and outputs various display data generated by the portable terminal.

The memory unit 170 may include program memories and data memories, andstores a wide variety of information required to control the operationof the portable terminal according to an exemplary embodiment of thepresent invention. The memory unit 170 may also store various selectedinformation based on user selection information. For example, the memoryunit 170 may include a ROM for storing an operation algorithm accessedby the first control unit 150 for the overall operation of the portableterminal, and a RAM for storing data depending on control instruction ina procedure for processing data of the first control unit 150.

FIG. 4 is a block diagram illustrating a portable terminal according toan exemplary embodiment of the present invention, and FIG. 5 is a blockdiagram illustrating a detailed structure of the portable terminal shownin FIG. 4.

As illustrated, the portable terminal includes a touchpad 210, a sensorunit 215, a switching unit 220, a second control unit 230, a key inputunit 240, a first control unit 250, a display unit 260, and a memoryunit 270.

In the structure of FIG. 4, functions of the key input unit 230, thedisplay unit 260, and a memory unit 270 are substantially the same asfunctions of the key input unit 140, the display unit 160, and thememory unit 170 of FIG. 1, respectively, according to the previousexemplary embodiment of the present invention. Therefore, description ofthese functions will be omitted for clarity.

Referring to FIGS. 4 and 5, the touchpad 210 includes a small flat panelto which a pressure sensor is attached. Signals are input to the secondcontrol unit 230 when the user touches the touchpad 210 with a finger, apen and the like.

The sensor unit 215 generates an interrupt signal and outputs it to thefirst control unit 240 upon sensing pressure on the touchpad 210. Thesensor unit 215 may be embedded or included in the touchpad 210

In an exemplary embodiment of the present invention, the sensor unit 215includes a dome sheet having a dome switch, which is substantially thesame as the previous exemplary embodiment of the present invention. Thedome switch senses pressure on a window of the touchpad 210 so as tooutput interrupt signals to the first control unit 250. Meanwhile, astructure of the touchpad 210 including the sensor unit 215 has beenalready described above in FIG. 3. Therefore, description about thisstructure will be omitted.

The switching unit 220 includes an analog switch according to anexemplary embodiment of the present invention. When the second controlunit 230 enters an inactivate mode, the switching unit 220, under thecontrol of the first control unit 250, connects an interrupt signal lineoutput from the sensor unit 215 to the first control unit 250. Forexample, referring to FIG. 5, the switching unit 220 is in a state A, soas to transmit interrupt signals generated in the sensor unit 215 to thefirst control unit 250 through an interrupt signal line.

Furthermore, when the second control unit 230 is in an active mode, theswitching unit 220 connects an interrupt signal line to the secondcontrol unit 230 under the control of the first control unit 250. Forexample, the switching unit 220 is in a state B with reference to FIG. 5so as to transmit interrupt signals generated in the sensor unit 215 tothe second control unit 230 through an interrupt signal line. From thispoint, the touchpad 210 is under the control of the second control unit230.

In an exemplary embodiment of the present invention, the second controlunit 230 may include a multimedia processor for processing multimediaincluding voices, pictures, and the like, similar to the abovedescription with reference to FIG. 1. When the second control unit 230is in an active state, i.e. an activate mode, the touchpad 210 iscontrolled by the second control unit 230 to maintain a user interface.

Furthermore, when the second control unit 230 is converted from theactive mode to the inactive mode, the second control unit 230 outputs asignal for notifying conversion to the inactive mode to the firstcontrol unit 250. As a result, the first control unit 250 connects aninterrupt signal line of the switching unit 220 connected with thesecond control unit 230 to the first control unit 250.

The first control unit 250 controls overall operations of the portableterminal according to an exemplary embodiment of the present invention.

When an interrupt signal is input to the first control unit 250 from thesensor unit 215 in a state that the second control unit 230 is in aninactive mode, the first control unit 250 outputs activate signals so asto activate the second control unit 230. The first control unit 250 alsogenerates a control signal so as to cause the switching unit 220 totransmit interrupt signals to the second control unit 230. Then, thesecond control unit 230 is converted from the inactive mode to an activemode so as to process signals input through the touchpad 210.

When interrupt signals are input to the first control unit 250 while itis in the sleep mode, the first control unit 250 is converted to theactive mode. Then, the first control unit 250 outputs activating signalsand is converted to the sleep mode again.

The first control unit 250 determines if the second control unit 230 isin the active mode at a certain time period so as to cause the switchingunit 220 to transmit the interrupt signal line.

When the second control unit 230 is not in the active mode as a resultof the determining, the first control unit 250 causes the switching unit220 to transmit interrupt signals generated in the sensor unit 215 tothe first control unit 250.

According to another exemplary embodiment, when signals for notifyingconversion to the inactive mode are input from the second control unit230 to the first control unit 250, under the control of the control unit250, the switching unit 220 can also transmit interrupt signalsgenerated in the sensor unit 215 to the first control unit 250.

FIG. 6 is a block diagram illustrating a portable terminal according toanother exemplary embodiment of the present invention, and FIG. 7 is ablock diagram illustrating a detailed structure of the portable terminalshown in FIG. 6.

As illustrated, the portable terminal includes a touchpad 310, a sensorunit 315, a second control unit 320, a key input unit 330, a firstcontrol unit 340, a display unit 350, and a memory unit 360.

In the structure of FIG. 6, functions of the key input unit 330, thedisplay unit 350, and a memory unit 360 are substantially the same asfunctions of the key input unit 140, the display unit 160, and thememory unit 170 of FIG. 1, respectively, according to the previousexemplary embodiment of the present invention. Therefore, description ofthese functions will be omitted.

Referring to FIGS. 6 and 7, the touchpad 310 includes a small flat panelto which a pressure sensor is attached. Signals are input to the secondcontrol unit 320 when the user touches the touchpad 310 with a finger, apen and the like.

The sensor unit 315 generates interrupt signals and outputs them to thefirst control unit 340 upon sensing pressure on the touchpad 310. Thesensor unit 315 may be embedded or included in the touchpad 310.

In an exemplary embodiment of the present invention, the sensor unit 315includes a dome sheet having a dome switch, which is substantially thesame as the previous exemplary embodiments of the present invention. Thedome switch senses pressure on a window of the touchpad 310 so as tooutput interrupt signals to the first control unit 340. Meanwhile, astructure of the touchpad 310 including the sensor unit 315 has beenalready described above in FIG. 3. Therefore description about thisstructure will be omitted for clarity.

Under the control of the second control unit 320 in an active state,i.e. an activate mode, the touchpad 310 is controlled to maintain a userinterface.

In an exemplary embodiment of the present invention, the second controlunit 320 may also include a multimedia processor for processingmultimedia including voices and pictures, similar to the abovedescription with reference to FIG. 1. The first control unit 340 can beimplemented as, for example, a Mobile Station Modem (MSM) chip andcontrols overall operations of the portable terminal according to anexemplary embodiment of the present invention.

When interrupt signals are input from the sensor unit 315 to the firstcontrol unit 340 in a state that the second control unit 320 is in theinactive mode, the first control unit 340 outputs an activating signalso as to activate the second control unit 320 which is in the inactivemode. Then, the second control unit 320 is converted from the inactivemode to the active mode to process signals input through the touchpad310.

If the interrupt signals are input to the first control unit 340 whileit is in the sleep mode, the first control unit 340 is converted to theactive mode. Then, the first control unit 340 outputs an activatingsignal so as to activate the second control unit 320, and is convertedto the sleep mode again.

When the first control unit 340, in the sleep mode or in the activemode, receives an interrupt signal from the sensor unit 315, it mayidentify if the second control unit 320 is in an active mode or a sleepmode. By identifying the state of the second control unit 320, it mayprevent output of unnecessary activating signals by determining that theactivating signals need not be output.

For example, when an interrupt signal is input to the first control unit340 in a state that the second control unit 320 is in the activate modeas a result of the identification, the first control unit 340 does notoutput an activating signal. On the other hand, when the interruptsignals are input to the first control unit 340 in a state that thesecond control unit 320 is in the inactivate mode, the first controlunit 340 outputs an activating signal.

As described above, even though the multimedia processor embedded in theportable terminal is in an inactive mode, the multimedia processor isimmediately activated when the user presses the touchpad, therebyprocessing signals input by pressing the touchpad, thus, maintaining theuser interface.

Furthermore, exemplary embodiments of the present invention can reducethe amount of battery power consumed by the multimedia processorembedded in the portable terminal in order to maintain the userinterface, as compared with multimedia processors maintaining operationusing a conventional polling method.

While the invention has been shown and described with reference tocertain exemplary embodiments thereof, it will be understood by thoseskilled in the art that various changes in form and details may be madetherein without departing from the spirit and scope of the invention asdefined by the appended claims and their equivalents.

What is claimed is:
 1. An electronic device comprising: a firstprocessor; and a second processor electrically coupled with the firstprocessor, wherein the first processor is configured to: based on aninterrupt signal input to the first processor while the first processorand the second processor are inactive, switch the first processor frombeing inactive to being active to perform operations of the electronicdevice, and output a first signal to the second processor, the firstsignal being for activating the second processor, wherein the secondprocessor is configured to: based on the first signal input to thesecond processor while the first processor is active, switch the secondprocessor from being inactive to being active to receive a touch inputsignal, and based on receiving the touch input signal while the firstprocessor and the second processor are active, output a second signal tothe first processor, and wherein the first processor is furtherconfigured to, based on the second signal received from the secondprocessor, perform an operation of the electronic device.
 2. Theelectronic device of claim 1, further comprising: a dome switch, whereinthe interrupt signal input to the first processor is output by the domeswitch.
 3. The electronic device of claim 2, wherein the interruptsignal is output by the dome switch based on a pressure applied to thedome switch.
 4. The electronic device of claim 1, further comprising: atouch input detection component, wherein the interrupt signal input tothe first processor is output by the touch input detection component,and wherein the touch input signal received by the second processor isoutput by the touch input detection component.
 5. The electronic deviceof claim 4, wherein the touch input detection component comprises atouch screen display.
 6. The electronic device of claim 4, wherein thetouch input detection component comprises a dome switch.
 7. Theelectronic device of claim 1, wherein the first processor is furtherconfigured to consume power at a lower rate of power consumption whilebeing inactive than while being active, and wherein the second processoris further configured to consume power at a lower rate of powerconsumption while being inactive than while being active.
 8. Theelectronic device of claim 1, wherein the first processor is inactivewhile the first processor is in a sleep state, and the second processoris inactive while the second processor is in the sleep state.
 9. Theelectronic device of claim 1, wherein the first processor is inactivewhile the first processor is in a power off state, and the secondprocessor is inactive while the second processor is in the power offstate.
 10. The electronic device of claim 1, wherein the secondprocessor is further configured to maintain an interface between theelectronic device and a user of the electronic device while the secondprocessor is active.
 11. The electronic device of claim 1, wherein thefirst processor is further configured to control to, based on the secondprocessor being in the active state, not receive the interrupt signal.12. The electronic device of claim 1, wherein the first processor isfurther configured to control to, based on a signal notifying that thesecond processor is inactive, receive the interrupt signal from thesecond processor.
 13. An electronic device comprising: a touch inputdetection component; a first processor; and a second processorelectrically coupled with the first processor, wherein the firstprocessor is configured to: based on an interrupt signal received fromthe touch input detection component while the first processor and thesecond processor are inactive, switch the first processor from beinginactive to being active to perform operations of the electronic device,and output a first signal to the second processor, the first signalbeing for activating the second processor, wherein the second processoris configured to: based on the first signal input to the secondprocessor while the first processor is active, switch the secondprocessor from being inactive to being active to receive a touch inputsignal, and based on receiving the touch input signal while the firstprocessor and the second processor are active, output a second signal tothe first processor, and wherein the first processor is furtherconfigured to, based on receiving the second signal from the secondprocessor, perform an operation of the electronic device.
 14. Theelectronic device of claim 13, wherein the first processor is furtherconfigured to consume power at a lower rate of power consumption whilebeing inactive than while being active, and wherein the second processoris further configured to consume power at a lower rate of powerconsumption while being inactive than while being active.
 15. Theelectronic device of claim 13, wherein the first processor is inactivewhile the first processor is in a sleep state, and the second processoris inactive while the second processor is in the sleep state.
 16. Theelectronic device of claim 13, wherein the first processor is inactivewhile the first processor is in a power off state, and the secondprocessor is inactive while the second processor is in the power offstate.
 17. The electronic device of claim 13, wherein the touch inputdetection component comprises a touch screen display.
 18. The electronicdevice of claim 13, wherein the second processor is further configuredto maintain an interface between the electronic device and a user of theelectronic device while the second processor is active.
 19. Theelectronic device of claim 13, wherein the first processor is furtherconfigured to control to, based on the second processor being in theactive state, not receive the interrupt signal.
 20. The electronicdevice of claim 13, wherein the first processor is further configured tocontrol to, based on a signal notifying that the second processor isinactive, receive the interrupt signal from the second processor.
 21. Amethod by an electronic device including a first processor and a secondprocessor electrically coupled with the first processor, the methodcomprising: based on an interrupt signal input to the first processorwhile the first processor and the second processor are inactive,switching, by the first processor, the first processor from beinginactive to being active to perform operations of the electronic device;outputting, by the first processor, a first signal to the secondprocessor, the first signal being for activating the second processor;based on the first signal input to the second processor while the firstprocessor is active, switching, by the second processor, the secondprocessor from being inactive to being active to receive a touch inputsignal; based on receiving the touch input signal while the firstprocessor and the second processor are active, outputting, by the secondprocessor, a second signal to the first processor; and based the secondsignal received from the second processor, performing, by the firstprocessor, an operation of the electronic device.
 22. The method ofclaim 21, further comprising: outputting, by a touch input detectioncomponent of the electronic device, the interrupt signal input to thefirst processor; and outputting, by the touch input detection componentof the electronic device, the touch input signal input to the secondprocessor.
 23. The method of claim 21, further comprising: maintaining,by the second processor, an interface between the electronic device anda user of the electronic device while the second processor is active.24. The method of claim 21, further comprising: based on the secondprocessor being in the active state, controlling, by the firstprocessor, to not receive the interrupt signal.
 25. The method of claim21, further comprising: based on a signal notifying that the secondprocessor is inactive, receiving, by the first processor, the interruptsignal from the second processor.
 26. A non-transitory computer readablemedium comprising a plurality of instructions for an electronic deviceincluding a first processor and a second processor of the electronicdevice electrically coupled with the first processor, which: when, oneor more instructions for the first processor among the plurality ofinstructions are executed by the first processor, the first processor iscaused to: based on an interrupt signal input to the first processorwhile the first processor and the second processor are inactive, switchthe first processor from being inactive to being active to performoperations of the electronic device, and output a first signal to thesecond processor, the first signal being for activating the secondprocessor; and when, one or more instructions for the second processoramong the plurality of instructions are executed by the secondprocessor, the second processor is caused to: based on the first signalinput to the second processor while the first processor is active,switch the second processor from being inactive to being active toreceive a touch input signal, and based on receiving the touch inputsignal while the first processor and the second processor are active,output a second signal to the first processor, wherein, when the one ormore instructions for the first processor among the plurality ofinstructions are executed by the first processor, the first processor isfurther caused to, based on the second signal received from the secondprocessor, perform an operation of the electronic device.
 27. Thenon-transitory computer readable medium of claim 26, wherein theinterrupt signal input to the first processor is output by a touch inputdetection component of the electronic device, and wherein the touchinput signal received by the second processor is output by the touchinput detection component of the electronic device.
 28. Thenon-transitory computer readable medium of claim 26, wherein, when theone or more instructions for the second processor among the plurality ofinstructions are executed by the second processor, the second processoris further caused to maintain an interface between the electronic deviceand a user of the electronic device while the second processor isactive.
 29. The non-transitory computer readable medium of claim 26,wherein, when the one or more instructions for the first processor amongthe plurality of instructions are executed by the first processor, thefirst processor is further caused to, based on the second processorbeing in the active state, control to not receive the interrupt signal.30. The non-transitory computer readable medium of claim 26, wherein,when the one or more instructions for the first processor among theplurality of instructions are executed by the first processor, the firstprocessor is further caused to, based on a signal notifying that thesecond processor is inactive, receive the interrupt signal from thesecond processor.